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   1  <?php
   2  ///////////////////////////////////////////////////////////////////////////
   3  //                                                                       //
   4  // NOTICE OF COPYRIGHT                                                   //
   5  //                                                                       //
   6  // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   7  //          http://moodle.org                                            //
   8  //                                                                       //
   9  // Copyright (C) 1999-onwards Moodle Pty Ltd  http://moodle.com          //
  10  //                                                                       //
  11  // This program is free software; you can redistribute it and/or modify  //
  12  // it under the terms of the GNU General Public License as published by  //
  13  // the Free Software Foundation; either version 2 of the License, or     //
  14  // (at your option) any later version.                                   //
  15  //                                                                       //
  16  // This program is distributed in the hope that it will be useful,       //
  17  // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  18  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  19  // GNU General Public License for more details:                          //
  20  //                                                                       //
  21  //          http://www.gnu.org/copyleft/gpl.html                         //
  22  //                                                                       //
  23  ///////////////////////////////////////////////////////////////////////////
  24  
  25  class data_field_url extends data_field_base {
  26      var $type = 'url';
  27  
  28      function display_add_field($recordid=0) {
  29          global $CFG, $DB, $OUTPUT, $PAGE;
  30  
  31          require_once($CFG->dirroot. '/repository/lib.php'); // necessary for the constants used in args
  32  
  33          $args = new stdClass();
  34          $args->accepted_types = '*';
  35          $args->return_types = FILE_EXTERNAL;
  36          $args->context = $this->context;
  37          $args->env = 'url';
  38          $fp = new file_picker($args);
  39          $options = $fp->options;
  40  
  41          $fieldid = 'field_url_'.$options->client_id;
  42  
  43          $straddlink = get_string('choosealink', 'repository');
  44          $url = '';
  45          $text = '';
  46          if ($recordid) {
  47              if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
  48                  $url  = $content->content;
  49                  $text = $content->content1;
  50              }
  51          }
  52          $str = '<div title="'.s($this->field->description).'">';
  53          if (!empty($this->field->param1) and empty($this->field->param2)) {
  54              $str .= '<table><tr><td align="right">';
  55              $str .= get_string('url','data').':</td><td>';
  56              $str .= '<label class="accesshide" for="' . $fieldid . '">'. $this->field->name .'</label>';
  57              $str .= '<input type="text" name="field_'.$this->field->id.'_0" id="'.$fieldid.'" value="'.$url.'" size="60" />';
  58              $str .= '<button id="filepicker-button-'.$options->client_id.'" style="display:none">'.$straddlink.'</button></td></tr>';
  59              $str .= '<tr><td align="right">'.get_string('text','data').':</td><td><input type="text" name="field_'.$this->field->id.'_1" id="field_'.$this->field->id.'_1" value="'.s($text).'" size="60" /></td></tr>';
  60              $str .= '</table>';
  61          } else {
  62              // Just the URL field
  63              $str .= '<label class="accesshide" for="' . $fieldid . '">'. $this->field->name .'</label>';
  64              $str .= '<input type="text" name="field_'.$this->field->id.'_0" id="'.$fieldid.'" value="'.s($url).'" size="60" />';
  65              if (count($options->repositories) > 0) {
  66                  $str .= '<button id="filepicker-button-'.$options->client_id.'" class="visibleifjs">'.$straddlink.'</button>';
  67              }
  68          }
  69  
  70          // print out file picker
  71          //$str .= $OUTPUT->render($fp);
  72  
  73          $module = array('name'=>'data_urlpicker', 'fullpath'=>'/mod/data/data.js', 'requires'=>array('core_filepicker'));
  74          $PAGE->requires->js_init_call('M.data_urlpicker.init', array($options), true, $module);
  75  
  76          $str .= '</div>';
  77          return $str;
  78      }
  79  
  80      function display_search_field($value = '') {
  81          return '<label class="accesshide" for="f_'.$this->field->id.'">' . get_string('fieldname', 'data') . '</label>' .
  82                 '<input type="text" size="16" id="f_'.$this->field->id.'" name="f_'.$this->field->id.'" value="'.$value.'" />';
  83      }
  84  
  85      function parse_search_field() {
  86          return optional_param('f_'.$this->field->id, '', PARAM_NOTAGS);
  87      }
  88  
  89      function generate_sql($tablealias, $value) {
  90          global $DB;
  91  
  92          static $i=0;
  93          $i++;
  94          $name = "df_url_$i";
  95          return array(" ({$tablealias}.fieldid = {$this->field->id} AND ".$DB->sql_like("{$tablealias}.content", ":$name", false).") ", array($name=>"%$value%"));
  96      }
  97  
  98      function display_browse_field($recordid, $template) {
  99          global $DB;
 100  
 101          if ($content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
 102              $url = empty($content->content)? '':$content->content;
 103              $text = empty($content->content1)? '':$content->content1;
 104              if (empty($url) or ($url == 'http://')) {
 105                  return '';
 106              }
 107              if (!empty($this->field->param2)) {
 108                  // param2 forces the text to something
 109                  $text = $this->field->param2;
 110              }
 111              if ($this->field->param1) {
 112                  // param1 defines whether we want to autolink the url.
 113                  $attributes = array();
 114                  if ($this->field->param3) {
 115                      // param3 defines whether this URL should open in a new window.
 116                      $attributes['target'] = '_blank';
 117                  }
 118  
 119                  if (empty($text)) {
 120                      $text = $url;
 121                  }
 122  
 123                  $str = html_writer::link($url, $text, $attributes);
 124              } else {
 125                  $str = $url;
 126              }
 127              return $str;
 128          }
 129          return false;
 130      }
 131  
 132      function update_content($recordid, $value, $name='') {
 133          global $DB;
 134  
 135          $content = new stdClass();
 136          $content->fieldid = $this->field->id;
 137          $content->recordid = $recordid;
 138          $names = explode('_', $name);
 139  
 140          switch ($names[2]) {
 141              case 0:
 142                  // update link
 143                  $content->content = clean_param($value, PARAM_URL);
 144                  break;
 145              case 1:
 146                  // add text
 147                  $content->content1 = clean_param($value, PARAM_NOTAGS);
 148                  break;
 149              default:
 150                  break;
 151          }
 152  
 153          if (!empty($content->content) && (strpos($content->content, '://') === false) && (strpos($content->content, '/', 0) === false)) {
 154              $content->content = 'http://' . $content->content;
 155          }
 156  
 157          if ($oldcontent = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
 158              $content->id = $oldcontent->id;
 159              return $DB->update_record('data_content', $content);
 160          } else {
 161              return $DB->insert_record('data_content', $content);
 162          }
 163      }
 164  
 165      function notemptyfield($value, $name) {
 166          $names = explode('_',$name);
 167          $value = clean_param($value, PARAM_URL);
 168          //clean first
 169          if ($names[2] == '0') {
 170              return ($value!='http://' && !empty($value));
 171          }
 172          return false;
 173      }
 174  
 175      function export_text_value($record) {
 176          return $record->content . " " . $record->content1;
 177      }
 178  
 179  }
 180  
 181